"""
Multi-theme color and visual style manager for the universal data report generator.
"""
from pptx.dml.color import RGBColor
from report_config import ThemeConfig, ThemePreset


PRESETS = {
    ThemePreset.BUSINESS_CLASSIC: ThemeConfig(
        preset=ThemePreset.BUSINESS_CLASSIC,
        name='商务经典',
        primary='#1E3A5F',
        accent='#10B981',
        accent_neg='#EF4444',
        secondary='#64748B',
        dark='#1F3A5C',
        white='#FFFFFF',
        gray_bg='#F2F2F2',
        card_bg='#E7F0F7',
        text='#333333',
        text_gray='#666666',
        line='#D9D9D9',
        chart_series=[
            '#1E3A5F', '#10B981', '#ED7D31', '#64748B',
            '#EF4444', '#707070', '#4472C4', '#5B9BD5',
        ],
    ),
    ThemePreset.FRESH_SIMPLE: ThemeConfig(
        preset=ThemePreset.FRESH_SIMPLE,
        name='清新简约',
        primary='#1B8A5E',
        accent='#10B981',
        accent_neg='#EF4444',
        secondary='#94A3B8',
        dark='#0F5C3B',
        white='#FFFFFF',
        gray_bg='#F8FAFC',
        card_bg='#ECFDF5',
        text='#1E293B',
        text_gray='#64748B',
        line='#E2E8F0',
        chart_series=[
            '#1B8A5E', '#3B82F6', '#F59E0B', '#94A3B8',
            '#EF4444', '#8B5CF6', '#06B6D4', '#10B981',
        ],
    ),
    ThemePreset.DARK_PROFESSIONAL: ThemeConfig(
        preset=ThemePreset.DARK_PROFESSIONAL,
        name='深色专业',
        primary='#1E293B',
        accent='#38BDF8',
        accent_neg='#F87171',
        secondary='#94A3B8',
        dark='#0F172A',
        white='#FFFFFF',
        gray_bg='#F1F5F9',
        card_bg='#E2E8F0',
        text='#1E293B',
        text_gray='#475569',
        line='#CBD5E1',
        chart_series=[
            '#1E293B', '#38BDF8', '#F59E0B', '#94A3B8',
            '#F87171', '#A78BFA', '#34D399', '#FB923C',
        ],
    ),
    ThemePreset.WARM_BRAND: ThemeConfig(
        preset=ThemePreset.WARM_BRAND,
        name='温暖品牌',
        primary='#C2410C',
        accent='#F97316',
        accent_neg='#DC2626',
        secondary='#78716C',
        dark='#7C2D12',
        white='#FFFFFF',
        gray_bg='#FFFBEB',
        card_bg='#FFF7ED',
        text='#292524',
        text_gray='#78716C',
        line='#D6D3D1',
        chart_series=[
            '#C2410C', '#F97316', '#EAB308', '#78716C',
            '#DC2626', '#84CC16', '#06B6D4', '#A855F7',
        ],
    ),
}


def get_theme(preset: ThemePreset, custom_overrides: dict = None) -> ThemeConfig:
    if preset == ThemePreset.CUSTOM:
        config = ThemeConfig(preset=ThemePreset.CUSTOM, name='自定义主题')
        if custom_overrides:
            for k, v in custom_overrides.items():
                if hasattr(config, k):
                    setattr(config, k, v)
        return config
    return PRESETS.get(preset, PRESETS[ThemePreset.BUSINESS_CLASSIC])


def theme_to_rgb_colors(theme: ThemeConfig) -> dict:
    return {
        'primary': _hex_to_rgb(theme.primary),
        'accent': _hex_to_rgb(theme.accent),
        'accent_neg': _hex_to_rgb(theme.accent_neg),
        'secondary': _hex_to_rgb(theme.secondary),
        'dark': _hex_to_rgb(theme.dark),
        'white': _hex_to_rgb(theme.white),
        'gray_bg': _hex_to_rgb(theme.gray_bg),
        'card_bg': _hex_to_rgb(theme.card_bg),
        'text': _hex_to_rgb(theme.text),
        'text_gray': _hex_to_rgb(theme.text_gray),
        'line': _hex_to_rgb(theme.line),
        'green': _hex_to_rgb(theme.accent),
        'red': _hex_to_rgb(theme.accent_neg),
        'orange': _hex_to_rgb(theme.chart_series[2]) if len(theme.chart_series) > 2 else RGBColor(0xED, 0x7D, 0x31),
        'series': [_hex_to_rgb(c) for c in theme.chart_series],
    }


def _hex_to_rgb(hex_str: str) -> RGBColor:
    hex_str = hex_str.lstrip('#')
    if len(hex_str) == 6:
        return RGBColor(int(hex_str[0:2], 16), int(hex_str[2:4], 16), int(hex_str[4:6], 16))
    return RGBColor(0x33, 0x33, 0x33)


def list_themes() -> list[dict]:
    result = []
    for preset, config in PRESETS.items():
        result.append({
            'key': preset.value,
            'name': config.name,
            'primary': config.primary,
            'accent': config.accent,
        })
    result.append({
        'key': 'custom',
        'name': '自定义主题',
        'primary': '自定义',
        'accent': '自定义',
    })
    return result


if __name__ == '__main__':
    for t in list_themes():
        print(f"{t['key']}: {t['name']} (primary={t['primary']}, accent={t['accent']})")